In the first study, three-year-olds watch two videos shown side by side.
在第一项研究中，三岁的孩子们观看了并排播放的两段视频。
Two other 91 year olds are under investigation for similar alleged crimes.
另两位91岁的老人也因为相似的罪名在接受调查。
Two-year-olds find this difficult.
两岁大的儿童会觉得这个任务很难
I know two year olds that are more interesting than you.
我知道，两岁的小孩都比你有趣。
Only a fifth of two-year-olds tested in the study were able to lie.
只需五合之一的两岁儿童能够道谎。
Only a fifth of two-year-olds tested in the study were able to lie.
只需五合之一的两岁儿童能够道谎。
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